What is 8051 Pcon register?

What is 8051 Pcon register?

PCON (Power Control) The PCON or Power Control register, as the name suggests is used to control the 8051 Microcontroller’s Power Modes and is located at 87H of the SFR Memory Space. Using two bits in the PCON Register, the microcontroller can be set to Idle Mode and Power Down Mode.

What is the use of Pcon register in 8051?

PCON (Power Control) register is used to force the 8051 microcontrollers into power-saving mode. The power control register of 8051 contains two power-saving mode bits and one serial baud rate control bit.

Which bit Pcon register?

87H is assigned to the PCON register.

How many registers are there in 8051 microcontroller?

The 8051 contains 34 general-purpose, or working, registers. Two of these, registers A and B, comprise the mathematical core of the 8051 central processing unit (CPU). The other 32 are arranged as part of internal RAM in four banks, BO-B3, of eight registers each, named RO to R7.

What is the purpose of PSW register?

The Program Status Word (PSW) contains status bits that reflect the current CPU state. The 8051 variants provide one special function register called PSW with this status information. The 251 provides two additional status flags, Z and N, that are available in a second special function register called PSW1.

What is the function of SCON register?

What is the function of SCON register? Solution: SCON register is mainly used for programming the start bits, stop bits and data bits of framing. As it consists of bits like RB8, TB8, SM0, SM1, SM2 etc.

What is PSW register?

What is the function of the SCON register?

Which of the following is an 8-bit register?

Which of the following is an 8-bit register? Solution: The registers, PSW, TCON and Accumulator are 8-bit registers.

What are Microcontroller registers?

A register is just a location in memory that you can write data to or read data from. Some of us refer to registers as “locations”. Special Function Registers. The special function registers (or simply SFR’s) on a microcontroller are just like the registers in data RAM.

How many register are there in microcontroller?

The Counters and Timers in 8051 microcontrollers contain two special function registers: TMOD (Timer Mode Register) and TCON (Timer Control Register), which are used for activating and configuring timers and counters.

What is the PCon Register on an 8051?

PCON (Power control) register is used to force the 8051 microcontroller into power saving mode. Power control register of 8051 contains two power saving mode bits and one serial baud rate control bit. Besides, what is Pcon register?

Where is the SMOD bit on the 8051 microcontroller?

The PCON or Power Control register, as the name suggests is used to control the 8051 Microcontroller’s Power Modes and is located at 87H of the SFR Memory Space. The SMOD Bit in the PCON Register is used to control the Baud Rate of the Serial Port.

Where is the serial port on an 8051 microcontroller?

SCON (Serial Control) The Serial Control or SCON SFR is used to control the 8051 Microcontroller’s Serial Port. It is located as an address of 98H. Using SCON, you can control the Operation Modes of the Serial Port, Baud Rate of the Serial Port and Send or Receive Data using Serial Port.

Which is the data pointer on the 8051?

The Data Pointer (DPTR) is the 8051’s only user-accessible 16-bit (2-byte) register. PCON is an 8-bit register used to control the baud rate during serial communication and 8051’s power control modes. ● Switch to Idle mode when IDL bit is set.